The Energy/Water Nexus
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A version of this article appears in the Spring 2019
issue of Home Energy Magazine.
April 02, 2019
E = H2O
Whiskey is for drinking, water is for fighting over. —Mark Twain
When anything is very inexpensive and not at the forefront in our minds, it can go undervalued and be misunderstood. Water falls into this dark hole. It’s not that we are running out of water; we are not. The problem is that the water isn’t always where we need it. The United Nations Environment Program reports that 97.5% of all water on earth is saltwater and 2.5% is freshwater. Of the 2.5% of freshwater, 0.3% is in lakes and rivers, and 30.8% is groundwater, including soil moisture, swamp water, and permafrost. A robust 68.9% of the 2.5% is in glaciers and permanent snow cover.
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